GB780278A - Improvements in or relating to methods of manufacturing non-metallic anisotropic permanent magnets - Google Patents
Improvements in or relating to methods of manufacturing non-metallic anisotropic permanent magnetsInfo
- Publication number
- GB780278A GB780278A GB10927/55A GB1092755A GB780278A GB 780278 A GB780278 A GB 780278A GB 10927/55 A GB10927/55 A GB 10927/55A GB 1092755 A GB1092755 A GB 1092755A GB 780278 A GB780278 A GB 780278A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- carbonate
- oxide
- barium
- calcium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62685—Treating the starting powders individually or as mixtures characterised by the order of addition of constituents or additives
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
- C04B35/2683—Other ferrites containing alkaline earth metals or lead
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
- C04B35/6262—Milling of calcined, sintered clinker or ceramics
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62625—Wet mixtures
- C04B35/6263—Wet mixtures characterised by their solids loadings, i.e. the percentage of solids
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3215—Barium oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/76—Crystal structural characteristics, e.g. symmetry
- C04B2235/767—Hexagonal symmetry, e.g. beta-Si3N4, beta-Sialon, alpha-SiC or hexa-ferrites
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
- C04B2235/787—Oriented grains
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Compounds Of Iron (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL780278X | 1954-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB780278A true GB780278A (en) | 1957-07-31 |
Family
ID=19830491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10927/55A Expired GB780278A (en) | 1954-04-20 | 1955-04-15 | Improvements in or relating to methods of manufacturing non-metallic anisotropic permanent magnets |
Country Status (7)
Country | Link |
---|---|
US (1) | US2837483A (de) |
BE (1) | BE537450A (de) |
CH (1) | CH347275A (de) |
DE (1) | DE954277C (de) |
FR (1) | FR1132397A (de) |
GB (1) | GB780278A (de) |
NL (1) | NL85512C (de) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2980617A (en) * | 1956-03-13 | 1961-04-18 | Indiana General Corp | Ferrite compositions and method of making same |
US3004918A (en) * | 1956-05-01 | 1961-10-17 | Bell Telephone Labor Inc | Production of magnetic ferrite bodies |
DE1236391B (de) * | 1956-05-16 | 1967-03-09 | Philips Nv | Verfahren zur Herstellung eines ferromagnetischen Ferritmaterials mit hexogonaler Kristallstruktur |
NL112994C (de) * | 1956-06-02 | 1966-07-15 | ||
US3023166A (en) * | 1956-08-18 | 1962-02-27 | Philips Corp | Magnetic record carrier |
US3036008A (en) * | 1956-12-24 | 1962-05-22 | Magneco Electronics Inc | Permanent magnet ferrite |
US3051988A (en) * | 1957-02-09 | 1962-09-04 | Baermann Max | Material with permanent magnetic properties |
DE1045006B (de) * | 1957-03-13 | 1958-11-27 | Deutsche Edelstahlwerke Ag | Verfahren zur Herstellung von anisotropen Dauermagnetkoerpern |
NL111324C (de) * | 1957-05-13 | 1965-06-15 | ||
NL99528C (de) * | 1957-06-22 | 1961-11-15 | ||
NL95813C (de) * | 1957-10-21 | 1960-11-15 | ||
US3040184A (en) * | 1958-07-01 | 1962-06-19 | Bell Telephone Labor Inc | Translation device having ferromagnetic core |
US3359152A (en) * | 1958-07-15 | 1967-12-19 | Leyman Corp | Machinable anisotropic magnet |
DE1182843B (de) * | 1959-01-03 | 1964-12-03 | Magnetfab Bonn Gmbh | Verfahren zur Herstellung anisotroper gesinterter Dauermagnete |
US3067140A (en) * | 1959-06-16 | 1962-12-04 | Raytheon Co | Orientation of ferrites |
US2954346A (en) * | 1959-10-28 | 1960-09-27 | Ibm | Permanent magnetic materials |
US3150925A (en) * | 1961-04-20 | 1964-09-29 | Richard J Gambino | Method of growing single crystals |
US3093589A (en) * | 1961-05-11 | 1963-06-11 | Columbian Carbon | Magnetic material |
NL296037A (de) * | 1962-08-01 | |||
NL123690C (de) * | 1963-02-04 | |||
US3291740A (en) * | 1963-11-29 | 1966-12-13 | Bell Telephone Labor Inc | Ferrimagnetic garnet compositions |
US3375196A (en) * | 1964-02-05 | 1968-03-26 | Hitachi Ltd | Method for introducing calcium oxide into manganese-zinc ferrite magnetic materials |
DE1646885A1 (de) * | 1966-08-31 | 1971-08-05 | Philips Patentverwaltung | Verfahren zur Herstellung von Bindemittel-Dauermagneten aus Ferrit |
GB1351737A (en) * | 1970-04-20 | 1974-05-01 | British Steel Corp | Ferrites |
DE2143718C3 (de) * | 1971-09-01 | 1978-08-17 | Robert Bosch Gmbh, 7000 Stuttgart | Verfahren zur Herstellung von Dauermagnetwerkstoffen aus Ferriten |
JPS5364797A (en) * | 1976-11-24 | 1978-06-09 | Tdk Corp | Rubber, plastic magnet and magnetic powder for them |
CN103848621B (zh) * | 2013-12-20 | 2015-06-10 | 北矿磁材科技股份有限公司 | 一种干压异性永磁材料的制造方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2700023A (en) * | 1951-03-10 | 1955-01-18 | Steatite Res Corp | Process of making molded ceramic ferromagnetic products |
-
0
- NL NL85512D patent/NL85512C/xx active
- BE BE537450D patent/BE537450A/xx unknown
-
1955
- 1955-04-15 GB GB10927/55A patent/GB780278A/en not_active Expired
- 1955-04-17 DE DEN10517A patent/DE954277C/de not_active Expired
- 1955-04-18 FR FR1132397D patent/FR1132397A/fr not_active Expired
- 1955-04-18 CH CH347275D patent/CH347275A/de unknown
- 1955-04-18 US US502237A patent/US2837483A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
BE537450A (de) | |
FR1132397A (fr) | 1957-03-11 |
US2837483A (en) | 1958-06-03 |
CH347275A (de) | 1960-06-30 |
DE954277C (de) | 1956-12-13 |
NL85512C (de) |
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